GB855334A - Improvements in or relating to rotary dynamo-electric machines - Google Patents

Improvements in or relating to rotary dynamo-electric machines

Info

Publication number
GB855334A
GB855334A GB3792356A GB3792356A GB855334A GB 855334 A GB855334 A GB 855334A GB 3792356 A GB3792356 A GB 3792356A GB 3792356 A GB3792356 A GB 3792356A GB 855334 A GB855334 A GB 855334A
Authority
GB
United Kingdom
Prior art keywords
rotor
dynamo
electric machines
stator
dec
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3792356A
Inventor
Thomas Andrewes Uthwatt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mather and Platt Ltd
Original Assignee
Mather and Platt Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mather and Platt Ltd filed Critical Mather and Platt Ltd
Priority to GB3792356A priority Critical patent/GB855334A/en
Publication of GB855334A publication Critical patent/GB855334A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

855,334. Dynamo-electric machines. MATHER & PLATT Ltd. Dec. 10, 1957 [Dec. 12, 1956], No. 37923/56. Class 35. To avoid pressure piling due to explosion of an inflammable gas, a flameproof rotary dynamo-electric machine having a rotor 7, a stator 8, and an air-gap 10 therebetween, has provided on the rotor and/or stator one or more steps of magnetic material which for a relatively short length of the rotor reduces the length of the air-gap 10 to 0.012 inch or less. As shown applied to an electric motor the rotor has interleaved with its laminations at each end a number of non-magnetic e.g. brass core plates 11 but the latter alternatively may be at either end or intermediate the ends. To prevent the passage of a flame-front the winding slots and keyways are sealed and the bearings 4, 5 are provided with shrouds 14, 15 having small clearance from the rotor shaft 6.
GB3792356A 1956-12-12 1956-12-12 Improvements in or relating to rotary dynamo-electric machines Expired GB855334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3792356A GB855334A (en) 1956-12-12 1956-12-12 Improvements in or relating to rotary dynamo-electric machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3792356A GB855334A (en) 1956-12-12 1956-12-12 Improvements in or relating to rotary dynamo-electric machines

Publications (1)

Publication Number Publication Date
GB855334A true GB855334A (en) 1960-11-30

Family

ID=10399966

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3792356A Expired GB855334A (en) 1956-12-12 1956-12-12 Improvements in or relating to rotary dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB855334A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159340A (en) * 1984-05-08 1985-11-27 Dso Elprom An inductor for an electrical machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159340A (en) * 1984-05-08 1985-11-27 Dso Elprom An inductor for an electrical machine

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